Preoperative attention: 1. Do not take drugs containing aspirin for two weeks before mandibular plastic surgery, because aspirin will reduce platelet coagulation function; 2. Mandibular plastic surgery should ensure good health, no infectious diseases or other systemic inflammation, no source of oral infection, no organic diseases of important organs, such as heart disease, hepatitis, nephritis, pneumonia and other diseases; 3. Patients with hypertension and diabetes should inform the doctor in detail at the initial diagnosis, so that the attending doctor can confirm the mandibular plastic surgery plan.

Postoperative concern: 1. In most cases, it is necessary to stay overnight after the operation. 2. Bandage for 3-4 days after operation. You can only wash the unbound part, and you can wash your face as usual after removing the bandage. 3. Although no additional disinfection or treatment measures are needed after operation, oral hygiene management is still very important. Be sure to rinse your mouth with disinfectant after meals. 4. Although the suture is naturally melted, it can be removed within 7- 10 days after operation under inconvenient circumstances. 5. You can do the exercise you did in the past 2-3 weeks after operation. For example, a quick walk and a little exercise will start in a week.